The Cat Babble Ball - Catnip Infused is rigid with grooves, and makes 6 different sounds; “Squeak, Squeak, Squeak,” “Oops! Here we go again!.” “Here Kitty, Kitty, Kitty,” “Meow, Meow, Meow,” “Psst! Psst! Psst!,” and “Chirp, Chirp, Chirp.” Catnip can be recharged by adding a couple drops of liquid catnip into the small, round speaker hole. Available in kitty cat magenta. Diameter: 2-1/8" This ball is also suitable for mini breed dogs.